<?php
$time = new DateTime("2019-01-01 00:00:00");
$time->modify('+1 day');
$time->modify('+1 hour');
$timezone = $time->getTimezone();
$aaa = 10;
var_dump($time->format('Y-m-d H:i:s'));
var_dump($aaa);

var_dump("这是第" . __LINE__ . "行");
var_dump("文件地址" . __FILE__);
